These concerns resulted in the development of a second type of encoder
and decoder that focused on security and utilized a changing code to
guard against code grabbing. Typically, the contents of each transmission
changes based on complex mathematical algorithms to prevent someone
from reusing a transmission. These devices gained rapid popularity
due to their security and the elimination of manual switches; however,
they imposed some limitations of their own. Such devices typically offer
a limited number of inputs, the transmitter and receiver can become
desynchronized, and creating relationships and associations among groups
of transmitters and receivers is difficult.
The HS Series offers the best of all worlds. The HS Series uses an
advanced high security encryption algorithm called CipherLinx? that
will never become desynchronized or send the same packet twice. It is
easily configured without production programming and allows for “button
level” permissions and unique encoder and decoder relationships. Eight
inputs are available, allowing a large number of buttons or contacts to be
connected.
To learn more about different encoder and decoder methodologies, please
refer to Application Note AN-00310.
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